Factor k2 - 81. (k + 9)(k + 9) (k - 9)(k - 9) (k - 9)(k + 9)

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

What’s -11-33k and factor each expression completely

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees